Joseph e



/ J. E. T YNAN.

SILK THR'OWING MACHINE.

(No. Model.)

Patented June 14, 1887.

Nv PETERS Pholo-ljlhugnpher. Wuhingtw. DJ}

UNITED STATES PATENT Fries.

JOSEPH E. TYNAN, OF PATERSON, NEIV JERSEY.

SILK-TH ROWING MACHINE.

. SPECIFICATION forming part of Letters Patent No. 364,783, dated June 14-, 1887.

Serial No. 199,8r 3. (N model.)

To all i wl wm it may concern/.-

Be it known that I, J osnrn E. TYNAN, of Paterson, in the county of Passaic and State of New Jersey, have invented an Improvement in,Silk-ThrowingMachines, of which the following is a specification.

In the manufacture of organzine the warp is usually laid up in three operations. Two

, threads are passed away from two separate made, when the spindles have been driven by friction-disks or by separate bands, inequality in the twisting operation was of frequent'oceurrence, because some of the belts will be tighter than others, or there more or less slipping of one friction-disk upon the other.

The object of the present invention is to insure perfect uniformity in the twist by driving all three spindles by one band and with a nearly uniform tension upon the entire band, so that the risk of the band slipping upon one pulley more than another is entirely avoided. I also arrange the three spindles of each group in such a manner that the ring or traverse rail that surrounds the bobbin or spool upon which the twisted thread is wound does not interfere with the bobbins or spools that supply the threads that are to be twisted.

In the drawings, Figure 1 is a plan view of my improvement with two groups of spindles, and Fig, 2 is an elevation of said spindles and driving mechanism and a section of the frame of the machine.

ner for laying up the threads uponthe spool or bobbin 8.

I have representeda ring-traveler for laying up the threads; but any well-known device may be employed for guiding the threads as wound from end to end upon the spool 8.

The spindles 3, 4, and 5 form one group, and they occupy triangular positions, as seen in Fig. 1, the spindles 3 and 4 being near the front edge of the rail B, and the spindle 5 near the back edge of said rail B. The belt 30 is passed around the pulleys of the spindles 3, 4, and 5 in the direction indicated in Fig. 1 that is to say, said belt 30 passes from behind around the spindle 4, then'backward and around the spindle 5, then forward and around the spindle 3in each instance the belt being in contact with about one hundred and eighty degrees of each pulley upon each spindle, so that there is about the same amount of driving-surface on each pulley in contact with the belt, and the belt being under a nearly uniform tension throughout, there is no more tendency to slip upon one pulley than upon another. The belt 30 passes around the driving-drum D, and there is either a guide-pulley or a tighteningpulley at F,over which the belt 30 passes.

In order to make the belt 30 operate properly, said belt should pass from the pulley upon the spindle 3 over the guide-pulley F, down beneath the drum 1), up' over the same, and thence to the pulley upon the spindle 4; and this drum D is to be rotated in the direction indicated by the arrow, so that the pull upon the belt 30 will be in a direct line as it passes down over the pulley F, and the slacker portion of the belt will be between the drum 1) and the pulley upon the spindle 4. In this manner the belt 30 will give to all the spindles in the group a uniformity of speed, and the risk of inequality in the twisting and laying up of the threads will be prevented.

By my improvement I am able to'drive, by separate bands passing around the same cylinder, groups-of spindles at opposite sides of the silk-throwing machine.

I have shown a second group of spindles, 3 4 5, upon the rail B, driven by a second end less belt, 32; and in order to give to the orgair zine the proper twists and in the same direction as the groups of spindles upon the rail B,

I lead the belt 32 from the spindle 3 directly to the drum D, and pass the same over and beneath the drum, and up over the guide-pulley F, and thence to the spindle 4.

By the arrows marked upon the respective parts it will be seen that the spindles 5 revolve in the reverse directions from the spindles 3 and l; but the spi ndlesin the respective groups give to the threads aslaid up the proper twists,

so thatthe organzine has a uniformity oftwist and in the same direction.

The feed-rollers that act upon the threads and the stop-motion devices that arrest the retation of the spindles when either thread that is being twisted and laid up breaks may beof any desired character, and do not form a nec essary part of this invention.

\Vhere attempts have been made to drive a group of three spindles by one belt two serious diffieulties have arisen. The first is from the beltslipping upon thepulleys,becauseitdid not suflieicntly surround the pulley to afl'ord the necessary frictional contact, and the second was from the ring or traverse rail surrounding the supply spools or bobbins and interfering with the easy changing of the said bobbins. In myimprovementsthescdifficultiesareavoided, and I am ableto pass the threads directly away from thesnpply-spools up to the feedi ngroller.

I claim as my invention 1. The combination, with a horizontal driving-drum and vertical guide-pulley, of two spindles for spools from which threads are drawn off and twisted, and a third spindle for the spool on which the thread is wound, occupying a triangular position to the other two, and one belt passing around the driving-drum and guidepullcy, around the pulleys ofthc two spindles, from the spools of which the thread is drawn, and in the reverse direction around the pulley of the winding-spindle, the belt being led, as described, so as to pass nearly half around each spindle-pulley, substantially as set forth.

2. The combination, with the horizontal driving-drum, of the two groups of spindles, one group at each side of the machine, with two spindles for the spools, from which the threads are drawn, and a third spindle for the winding-spool in each group, two belts around the drum passing off in opposite directions and around the pulleys of the spindles in the respective groups in the manner specified, and two guide-pulleys, one of which receives and guides one belt where it passes to the drivingdrum and the other of which guides the other belt where it passes away from the drivingdrum, substantially as set forth.

3. In a machine for throwing silk, groups of spindles, each group being composed of three spindles arranged triangularly, substantially as shown, and a traverse or ring rail that surrounds only one of the spindles, in C0ll'll)ll]tll)l0l] with an endless belt passing around all such spindles, to give motion to two of the spindles in one direction and to the third spindle in the opposite direction, and a drum for driving the said endless belt, substantially as set forth.

Si ned by me this 21st day of April, A. D.

JOSEPH E. TYNAN. 

